#include <cstdio>
#include <cstdlib>
#include <cstring>
#define MAX_COL 20
#define MAX_INPUT 1000


// functions in the example
int read_column_number(int iColumn[], int iMax);
void rearrange(char *output, char const * input, int iNCol, int const iColumn[]);
void test_1();

// test 1.2
// output with line numbers
void test_1_2();
